Adjustable nozzle



1932. 14.0. WRIGHT 1,883,264

ADJUSTABLE NOZZLE .rnea June 10. 1931 Patented Oct. 18, 1932 UNITEDSTATES PATENT. OFFICE.

HORACE C. WRIGHT, OI CHICAGO, ILLINOIS, ASSIGNOB '10 CHICAGO FLEXIBLESHAFT COIPAN Y, OF CHICAGO, ELINOIS, A CORPORATION OF ILLINOISADJUSTABLE NOZZLE Application filed June 10,

This invention relates to sprinklers and has particular reference toadjustable nozzles forming a part thereof and serving to produ e aproper flow of liquid from the spr' er.

It is desirable in sprinklers of the type desighed primarily for use insprinkling lawns and the like, to make the nozzle as sturdy and as freefrom-operating difiiculties as possi- 1o ble, compatible with properdistribution of the water. Another, factor in their design is cost ofmanufacture. A major diificulty with those of the prior art is the factthat they are so designed that plugging or stoppage of the orifice isapt to occur -,under certain conditions of operation. The same featuresof design tend to reduce the velocity of the water emerging from thenozzle so that the area covered by the sprinkler is considerably lessthan that normally possible.

These devices have also been comparatively complicated, easily broken,and expensive to manufacture.

I have aimed to provide a nozzle hav ng 2 a novel arrangement of partsproducing 1mproved means for adjusting the flow of liquid therefrom.

Another object of the invention is the provision of a nozzle having aminimum number of parts each of which may be manufactured by economicalforming operations.

A further object of the invention is the provision of a spray nozzlehaving improved means for distributing the water flowing therethrou h.

Other 0 jects and attendant advantages will become apparent to thoseskilled in the art from the following description and the accompanyindrawing in which Figure 11s a side elevation of a lawn sprinklerembodying my invention; I

Fig. 2 is a longitudmal section through one of the spray nozzles;

3 is a section on the. line 3-3 of Fig.

Fi 4 is a top view'of my im roved nozzle.

ile it will be understoo that my invention is not limited to use with alawn sprinkler, I have shown it in the drawing as applied to a lawnsprinkler having a 1931. Serial No. 548,487.

sprinkler base 6 provided with means 7 for connecting the flexible hoseor other water conducting means. A tube 8 is rotatably secured to theupper end of the base 6 and is provided with radial nozzle carrying arms'9 and 11 through which water or other liquid is conducted to opposednozzles designated generally by the numerals 12 and 13. The nozzles 12and 13 are connected to the outer ends of the arms 9 and 11 throughthreaded nipples 14 and 15 which also serve to conduct the water fromthe arms into the nozzles, the upper ends of the nipples enga ing thethreaded openings 16 in the nozzle body 17 Each of the nozzles 12 and 13consists of a body portion 17 having angularly positioned connectingchambers 18 and .19, the chamber 18 serving to receive the water fromthe nipple 14 or 15. A tubular valve member 21, one end 22 of which hasan outer diameter such that it will be closely received within thechamber 19 is positioned in the latter chamber. The outer end 23 of themember 21 is of substantially smaller diameter both internally andexternally than the'portion 22 thereof, such as to provide a shoulder 24on the outer side and a constriction 25 on the inner side. A knurledheadportion 26 is positioned around the outer side of the portion 23 at oneend of the mema0 ber 21 and is advantageously secured thereto by beingtightly pressed thereon as shown at 27. A collar 28 is rotatably andslidably positioned around the portion '23 between the shoulder 24 andthe head portion 26 and is provided with an inwardly sloping face 29opposite-the shoulder 24. A backing member 31 of leather or othersuitable material is positioned between the shoulder 24 and the slopingface 29 and is adapted to be compressed between the shoulder and theface and be forced against the walls of the chamber 19 to prevent thepassage of liquid along the walls.

The valve chamber 22 is provided with an opening 32 adapted, when thevalve member is in its completely open position to form a continuationof the chamber 18 as shown in, Figs. 2 and 3. This opening permits thewater or other liquid to pass from the cham-.1:

her 18 through the opening 32 and out through the end 23 of the center22. By manual rotation of the head 26 the opening 32 may be moved eitherwholly or partially out of coincidence with the chamber 18, thereby'varyin the amount of 1i uid discharged from t e nozzle and the caracter of the dischar e as will presently be more fully ex laine Agroove or other mark 33' is positioned on the body portion 17 and a oove34 is positioned on the head member 26 to indicate the position of theopening 32 with respect to the chamber 18. Thus, in the drawlng theseindicating grooves are so positioned that when in coincidence the openin32 is completely out of registration with t e chamber 18 so that nowater will flow from the nozzle. Upon rotation of the head 26 in eitherdirection the opening 32 will be progressively brought into registrationwith the chamber 18 until it reaches complete registration as shown inFig. 3.

It will be seen that the device consists of low cost machining.operations. These are the bod member 17, the valve member 22,

the hea member 26, the collar 28, and the packin 31. The device is alsovery easily assemb ed by inserting the sleeve 22 within the chamber 19of the body 17, placing the packing member 31 and the collar 28 over theend 23 of the valve member and forcing the head member 26 into positionon the valve member. When the head member is brought into position thebacking member 31 and the collar 28 are forced a ainst the shoulder 24rendering the joint liquid ti ht. In addition the collar 28 is placedrmly into the body 17 thereby serving to hold the valve member 22 in itsproper position within the body member. The head 26 thus serves durinthe assemblin operations to force the co lar 28 into the ody 17 by meansof the face 35, the face 35 also servin as a stop by contact with theend 36 of t e body 17. In this manner a nozzle is formed at a com-'paratively small cost because of the simplicity of its manufacture andits ease of assembly.

N o supplementary means are necessary. in order to produce thescattering effect desired of such a nozzle. For this reason it is notnecessary to .interpose devices in the stream of water to produce aspraying effect for as the o nin 22 is moved nearly out of re 'strationwith the chamber 18 only a re atively small amount of water passes intothe-valve member 22. This water, however, enters at sufiicient velocityto be carried rapidly out of the end 23 of thevalve member, and itsintroduction at a small angle with respect'to the valve member, combinedwith the constriction 25 serves to give this small amount of water sucha movement that it will emerge from the end of the nozzle partsrequiring delicate adjustment or no Y parts susceptible of beinglaterally bent or roken during the service of the device.

While I have thus described and illustrated a specific embodiment of myinvention I am aware that numerous alterations and changes may be madetherein without materially departing from the spirit or sco e of myinvention and I do not wish to be limited except as required by theprior art and the scope of the appended claims, in which I claim:

1. An adjustable nozzle comprising a body having converging chambers, atubular valve member rotatably positioned in one of said chambers,having an opening positioned to be brought into registration with thepoint of convergence of said chambers by rotation of said member and anopen outer discharge end of smaller inside and outside diameter than theremainder of said valve member providing a shoulder on the outer side ofsaid member, a collar rotatably positioned on said member ressed intosaid chamber, a packing mem r on said valve member between said collarand said shoulder, and a knurled member secured to the outer end of saidvalve member for manual rotation thereof to vary the relative osition ofsaid valve member and said bo y to control the flow of liquid therefrom.

2. An adjustable spray nozzle comprising a body having a valve chamberprovided with a closed and an open end, and a second chamberintersecting said valve chamber intermediate its ends having an open endadapted to receive liquid and an end opening into said valve chamber, acylindrical valve member rotatabl positioned in said valve chamber, saidva ve member comprising an inner portion of the outside diameter ofwhich is substantially the same as the inside diameter of said valvechamber and an outer portion of substantially smaller inside and outsidediameter to provide a shoulder on said valve member, a space between thewalls of said chamber and said valve member and form a constriction onthe inside thereof, said first mentioned portion having on openingpositioned to be brou ht into and out of re istration with the en ofsaid second cham r by rotation of said valve member to admit fluid intosaid valve member, a collar in the space between said last mentionedportion and the walls of said chamber, having fixed bearing contact withsaid walls, rotatable bearing contact with said valve member, and apacking member pressed between said shoulder and said collar to preventleakage of liquid around said valve member, and means for rotating saidvalve member to control the flow of liquid therefrom.

3. An adjustable spray nozzle comprising a valve chamber, a tubularvalve member rotatably positioned in said chamber having a cylindricalinner surface of two different diameters, that of smaller diameterterminating in a discharge opening, and a sloping surface connecting thesurfaces of different diameters, means for conducting liquid into saidvalve member at an obtuse angle with respect to the longitudinal axis ofthe discharge end of said valve member in a position to impinge againstthe inner. surface of larger diameter at a point closely adjacent tosaid sloping surface, whereby to impart particular flow characteristicsto said liquid, and means for regulating the fluid entering said valvemember.

4. An adjustable spray nozzle comprising a body having a cylindricalvalve chamber open at one end, a tubular valve member rotatably insertedin the open end of said chamber, means secured to the outer end of saidvalve member for manually rotating the same, said valve memberprojecting beyond said body only such distance as required for theattachment of said means, said valve member having a bore of largerdiameter at the inner end thereof, a bore of smaller diameter at theouter end thereof forming an orifice, and a converging bore connectingsaid first mentioned bore, means for conducting liquid to said Valvemember at an obtuse angle with respect to the discharge end thereof in aposition to impinge against the bore of larger diameter closely adjacentto said converging bore, said valve member having an opening adapted toregister with said means upon rotation of the former, whereby the liquidis conducted into said valve member in a position and direction toimpart desired flow characteristics to the liquid as it immerges fromsaid orifice.

In witness of the foregoing I afiix my signature.

HORACE C. WRIGHT.

